Abstract: A composite lenticular film includes a first layer having a first refractive index, and a second layer having a second refractive index less than the first refractive index. The second layer is integrally attached to the first layer. The first layer has at least one row of protruding lenses.
Abstract: Method for the preparation of asymmetric alkynylated ?-amino esters of the formula wherein R1 and R2 are independently optionally substituted alkyl cycloalkyl, aryl or heteroaryl, and Y is hydrogen or a nitrogen protecting group.
Abstract: A chipless microwave identification tag (200) comprising: a dielectric substrate (210); and a plurality of antenna elements (220) made from a conductive material and disposed on at least one surface (205, 255) of the dielectric substrate (210); wherein when the tag (200) is excited by an incident microwave signal (131), a reflected wave (141) to identify the tag (200) is generated with a number of specific frequencies altered by microwave resonation of the antenna elements (220).
Type:
Application
Filed:
March 2, 2009
Publication date:
October 29, 2009
Applicant:
The Hong Kong Polytechnic University
Inventors:
Kai Leung Yung, Ching Yuen Chan, David Ki Wai Cheng
Abstract: A robotic system for rehabilitation using EMG signals to provide mechanical help includes EMG electrodes (6) sequentially connected in series, a DAS card (2) and a control portion (1), and further includes an actuator (3) connected to the DAS card (2) and an additional moment providing portion (4) connected to the actuator (3). The EMG electrodes sense EMG signals corresponding to the muscle of suffering joint, and input the sensed EMG signals to the control portion (1) through the DAS card (2). The control portion (1) uses the input EMG signals and a constant moment set as desired to calculate an additional moment to be applied to the suffering joint, and additional moment providing portion (4) is controlled to apply the corresponding additional moment to the suffering joint through the DAS card (2) and the actuator (3).
Abstract: The present invention relates to temperature compensation of HID lamps in automobiles. The invention concerns the manner in which the temperature of the HID lamp is accounted for in order to drive the lamp is at appropriate power from hot to cold conditions. In the present invention, the voltage across a capacitor in the temperature compensation circuit is sensed and used as a command signal to anticipate lamp temperature, and accordingly the reference power to the HID lamp is modulated depending on the temperature of the lamp. In the present invention, the lamp is driven with a higher power setting when the lamp is cold and with lower power setting when hot. This adaptive generation of reference power setting depending on the temperature of the lamp is implemented using the voltage across a capacitor in the temperature compensation circuit.
Type:
Application
Filed:
March 9, 2009
Publication date:
October 8, 2009
Applicant:
The Hong Kong Polytechnic University
Inventors:
Eric Ka Wai Cheng, Bangalore Prabhakar Divakar, Dao Hong Wang, Norbert Chow Cheung
Abstract: The present invention relates to a system for product storage and methods of categorizing, storing, and delivering products to end users via the system, the system's components including a processor, a “smart shelving” device, boxes for insertion into and utilization by the “smart shelving” device, and ID readers. Through the present invention, products are able to be securely and more certainly delivered to the proper recipient of the products.
Abstract: A digital communication system based on the use of chaotic carriers is disclosed. For each symbol to be sent, the transmitter sends a reference chaotic signal followed by a transformed version of the reference chaotic signal. For different symbols, different transformations are performed. Also, the transformations are designed such that the transformed versions of the reference chaotic signal do not resemble the original reference chaotic signal. As a consequence, little information can be deduced by inspecting the frequency spectrum of the transmitted signal. Moreover, even if the communication could be detected, it is difficult to decode the messages because there are numerous transformations possible.
Abstract: The invention relates to the compounds of formula: (I) which are as defined in the specification. Their use as chiral ligands in catalytic aryl transfer reactions to aromatic aldehydes is also described.
Abstract: An underwire assembly for use in a brassiere including an elongate support member of three-dimensional elongate form. The supporting member extends in at least two planes for conforming to an inferior profile of the breast of a wearer.
Abstract: The present invention relates to an assay and methods for determining the presence of pathogenic V. parahaemolyticus in a sample. Determination should be made by detector. Via the assay, rapid, real-time detection of V. parahaemolyticus is possible.
Type:
Application
Filed:
September 4, 2007
Publication date:
September 10, 2009
Applicant:
The Hong Kong Polytechnic University
Inventors:
Hang Mei Polly Leung, Shea Ping Yip, Shing Shun Tony To, Lek Hang Constance Lo
Abstract: A system for automatically controlling power supply to a lamp (101) of a vehicle, the system comprising: a detection module (20) to detect whether the vehicle is stationary or non-stationary; a controller (102) to receive a signal (25) having a first value transmitted by the detection module (20) when the vehicle is detected as stationary, and the controller (102) to receive a signal (25) having a second value transmitted by the detection module (20) when the vehicle is detected as non-stationary, wherein if the signal (20) having the first value is received by the controller (102), the controller (102) reduces the power supply to the lamp (101) from a first power level to a lower second power level in order to reduce energy consumption of the lamp (101), and if the signal (25) having the second value is received by the controller (102), the controller (102) restores the power supply to the lamp (101) from the lower second power level to the first power level.
Type:
Application
Filed:
March 10, 2008
Publication date:
September 10, 2009
Applicant:
The Hong Kong Polytechnic University
Inventors:
Eric Ka Wai Cheng, Bangalore Prabhakar Divakar, Dao Hong Wang
Abstract: The present invention relates to a method for microfluidic mixing in a “lab-on-a-chip” environment. The methodology focuses on constant acceleration and deceleration about a mean angular speed with a rotating disk serving as the mixing platform. The methodology results in good mixing between different fluids.
Abstract: Harmful algal bloom (HAB, also termed red tide) has increasingly caused tremendous damage to fisheries worldwide. Since the formation process of HAB is still to be uncovered and the causes of HAB occurrence are largely unknown, it is impossible to take effective measures of prevention. At the present, the only viable measure against HAB is to forewarn and predict the occurrence of large scale HAB, which relies on a viable and efficient indexing method. Unfortunately, there is currently no reliable method to forewarn the occurrence of HAB. The HaiDex method is of a diffusion-characterized water pollution indexing technology, which is invented to effectively forecast HAB, independent of water regions around the world. To ensure forecast accuracy, the HaiDex method is invented (and claimed) to: 1) Characterize statistically a continuous formation process with imperfect panel data of water quality (e.g.
Type:
Application
Filed:
March 10, 2008
Publication date:
September 10, 2009
Applicant:
The Hong Kong Polytechnic University
Inventors:
John Jianhua Liu, Jia Yan, Samuel Chun-lap Lo, Kin-chung Ho, Tsz Leung Yip
Abstract: In a process for fabricating a nano-floating gate memory structure, a substrate and a nanocluster source are firstly provided. The nanocluster source is activated for generating a beam of nanoclusters towards the substrate, and at least part of the nanoclusters are received atop the substrate. Thereby, a plurality of nanoclusters of controllable size are formed atop the substrate.
Abstract: A hollow-core photonic bandgap fiber polarizer may include a core, an inner cladding surrounding the core, the inner cladding including a plurality of capillaries, and an outer cladding at least partially surrounding the inner cladding. A section of the capillaries distal to the core is asymmetric relative to a section of the capillaries proximal to the core.
Abstract: The present invention is directed toward biomarkers that identify characteristics of algae. The invention is further directed toward biomarkers that serve to identify algae species and strains of algae species as well as detect the presence of algal toxins. Additional embodiments feature methods utilizing algal biomarkers and polypeptides that can serve as biomarkers.
Type:
Application
Filed:
June 15, 2007
Publication date:
September 3, 2009
Applicant:
The Hong Kong Polytechnic University
Inventors:
Samuel Chun-Lap Lo, Leo Lai Chan, Ivor John Hodgkiss
Abstract: Multidrug resistance (MDR) is a major problem in cancer chemotherapy. The best characterized resistance mechanism is the one mediated by the over-expression of drug efflux transporters, permeability-glycoprotein (P-gp), which pump a variety of anticancer drugs out of the cells, resulting in lowered intracellular drug accumulation. A series of flavonoid dimers are developed in this invention, which are linked together by linker groups of various lengths. These flavonoid dimers are found to be efficient P-gp modulators that increase cytotoxicity of anticancer drugs in vitro and dramatically enhance their intracellular drug accumulation. It is found that the flavonoid dimers of this invention is also useful in reducing drug resistance in treating parasitic diseases.
Type:
Application
Filed:
May 9, 2007
Publication date:
August 6, 2009
Applicants:
The Hong Kong Polytechnic University, McGill University
Abstract: A technique allowing manufacturers to produce woven moisture management fabrics with good moisture transfer properties is based upon a model of the fabric construction, thereby avoiding a manufacturing trial-and-error process. An initial woven fabric design including hydrophilic and hydrophobic yarns are modeled, the warp and weft yarns generally lying in a plane of the fabric. By orthographic projection onto respective planes substantially parallel to the plane of the fabric, a first view and an opposing second view of a unit cell of the model is produced. If the total projected area of hydrophobic yarn on one of the first and second views is between 40% and 70% of the total projected area, and total projected area of hydrophilic yarn on the other of the first and second views exceeds 50% of the total projected area, then a fabric according to the fabric design will have near optimum moisture wicking properties and is manufactured to the design.
Abstract: Metal chelates are useful for improving the contrast of X-ray, ultrasound, radionuclide and magnetic resonance (MR) images. However, the metal complexes must be stable and inert so that toxicity resulting from dissociation in the body can be minimized. This invention provides 16-member ring metal chelates that can provide a charge balanced metal complex having improved stability, especially for gadolinium(III) and samarium (III).
Type:
Grant
Filed:
September 24, 2004
Date of Patent:
July 7, 2009
Assignees:
The Hong Kong Polytechnic University
Inventors:
Kwok-Yin Wong, Chi Huang, Cheuk-Sang Kwok, Victor Snieckus
Abstract: Disclosed is a novel recombinant Bacillus bacterial strain constructed by genetic engineering which has high productivity of aipha-amylase. The Bacillus strain comprises an alpha-amylase gene inserted in the Bacillus chromosome under transcriptional control of a phage promoter. An efficient process for the rapid production of large amounts of alpha-amylase is also disclosed.